1245235352113 has 4 divisors (see below), whose sum is σ = 1245238024180. Its totient is φ = 1245232680048.

The previous prime is 1245235352021. The next prime is 1245235352143. The reversal of 1245235352113 is 3112535325421.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 440667613584 + 804567738529 = 663828^2 + 896977^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1245235352113 is a prime.

It is a super-2 number, since 2×1245235352113² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1245235352143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433998 + ... + 1636711.

It is an arithmetic number, because the mean of its divisors is an integer number (311309506045).

Almost surely, 2^{1245235352113} is an apocalyptic number.

It is an amenable number.

1245235352113 is a deficient number, since it is larger than the sum of its proper divisors (2672067).

1245235352113 is an equidigital number, since it uses as much as digits as its factorization.

1245235352113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672066.

The product of its digits is 108000, while the sum is 37.

The spelling of 1245235352113 in words is "one trillion, two hundred forty-five billion, two hundred thirty-five million, three hundred fifty-two thousand, one hundred thirteen".